Chapter 17.20 MEDIUM-DENSITY RESIDENTIAL (R-2) This chapter is included in your selections. Sections: 17.20.010 Intent. 17.20.020 Permitted uses. 17.20.030 Conditional uses. 17.20.040 Development standards. 17.20.060 Maximum height of structures. 17.20.070 Performance standards. 17.20.080 Site plans.